WSO2 held a webinar about releasing version 2.1.0 of their Message Broker product. The webinar covered messaging and scalable messaging systems, distributed message brokers and WSO2 MB's architecture using a distributed publish/subscribe and queues architecture. It also provided an overview of how WSO2 MB implements distributed queues and publish/subscribe using Apache Cassandra for scalable storage and Apache Zookeeper for coordination. Finally, it discussed integrating WSO2 MB with other WSO2 products and provided a user story example.